All Questions
Tagged with energy energy-harvesting
19
questions
2
votes
2
answers
127
views
Which topology should I use for energy harvesting
I am making a energy harvester design but am confused which of the following circuit should I use to amplify and filter my harvested voltage. The first topology is the synchronous switch harvesting on ...
- 21
0
votes
1
answer
628
views
Convert kWh during a 1 hour period to average 15 min kW output
If I have a photovoltaic system that outputs 100 kWh from 1PM - 2PM on a given day and I am trying to figure out what the average 15 minute kW would be during that time period, would that be equal to ...
- 1
1
vote
0
answers
187
views
SSHI circuit on LTSpice
I've been trying to get an SSHI circuit running on LTspice for several days now (see below schematic). My problem is the following: the simulation (.tran) stops after a hundred milliseconds. Being a ...
- 11
0
votes
1
answer
300
views
Can I charge a 16V 16.6F supercapacitor with an 18V solar panel?
I'm working on my calculus project (I recently started college) and my topic is using solar panels and supercapacitors to help mitigate the lack of energy/electricity in the rural areas in my region. ...
- 3
0
votes
1
answer
343
views
How does a relay or switch work with batteries or capacitors?
I am charging my capacitor so it can act as a battery for a short period of time. I already did the calculations for the battery discharging and charging.
My problem is now that I have a load, I want ...
- 81
0
votes
2
answers
79
views
Capacitor's energy required for a predetermined drop in its voltage - with LDO and constant current elements as load
I am trying to understand how much energy a circuit (composed by some passives here called analog, and an MCU) will require. The system is powered through a capacitor, and the "passives" are actually ...
- 1,305
2
votes
2
answers
193
views
Energy harvesting circuit output inquiry
I am doing an energy harvesting circuit experiment (LTC3108 IC chip).
There was an example in the LTspice program.
I observed the current of Vout and it was 99nA as follows. The voltage was found to ...
2
votes
1
answer
99
views
Storing short, small, intermittent pulses of energy
I am running an experiment using graphene at the moment to create energy from different chemical solutions. A link to what I am building on is below:
https://phys.org/news/2014-04-team-electricity-...
- 21
4
votes
3
answers
1k
views
How do energy harvesting ICs like LTC3106 and LTC3105 safely charge lipos?
I'm designing a simple device with a single cell LiPo that I want to be chargeable from a single solar power cell. As I start to look through the data sheets, I'm seeing that the battery charging is ...
- 307
0
votes
2
answers
98
views
How to be sure that I harvest power?
I am working with an electrochemical device which (I guess) harvests power. How can I be sure that I harvest power ?
My first idea was to plug a battery on my system. The problem is that my device ...
- 91
-2
votes
1
answer
436
views
Ways to Turn Electrical Energy into Kinetic Energy? [closed]
We want to build a pumpkin chunkin' launcher from Tesla Coil parts (and maybe some more). We were originally thinking a rail gun would be the closest thing to make it, but from the designs I've seen ...
- 113
2
votes
0
answers
665
views
How to light an LED using supercapacitor [duplicate]
I would like to light up a 3W LED from Cree having a forward voltage of 2.9 V at 350 mA. It's maximum drive current is 1 A and gives 300 lumens/m2 output. I am considering lighting up this LED using ...
0
votes
4
answers
491
views
Combining of two or more ultra low voltage DC/DC step up converter chip's (LTC3108) output
I want to use one LTC3108 with micro solar panel and other LTC3108 with TEG panel. Can I connect two LTC3108s' output to the one battery charger chip's input (max1555 for example)?
- 185
6
votes
2
answers
588
views
Maximum power out of thermoelectric generator?
The conventional method to extract maximum amount of energy from ThermoElectric Generator (TEG) is to load it with a resistance equal to the TEG's internal resistance as the maximum power transfer ...
- 1,649
5
votes
2
answers
2k
views
Harvesting Back EMF Possible?
Let me start by saying that I am not talking about the free energy or "overunity" idea of back EMF. When searching around for information I can only seem to find information from free energy sites, ...
- 1,069